Resize Video
Change a video's resolution — 1080p to 360p.
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About Resize Video
Resize Video changes a video's resolution — down to 1080p, 720p, 480p or 360p — right in your browser, keeping the original aspect ratio. Upload a file, pick a size, and download a smaller MP4. No sign-up, no watermark, and nothing is uploaded.
It runs an in-browser build of ffmpeg and re-encodes to H.264, so the resized video plays anywhere. A smaller resolution also makes the file smaller, which is handy for email, uploads and messaging.
Frequently asked questions
- Is it free to use?
- Yes — completely free, with no sign-up, no watermark and no limits.
- Is my video uploaded to a server?
- No. It runs an in-browser build of ffmpeg, so your video is processed entirely on your own device and never uploaded.
- Does it keep the aspect ratio?
- Yes. You choose the height (like 720p) and the width is scaled to match, so the video keeps its original shape without stretching.
- Will resizing lose quality?
- Making a video smaller is lossy and a lower resolution holds less detail, but the settings keep it looking clean. Resizing to a resolution larger than the original will not add detail that was not there.
- Why does the first run take a moment?
- The first time, it downloads a ~32 MB processing engine, which is cached afterwards so later runs start instantly.